Omron CJ1W-MA - REV 10-2008, Operation Manual

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Software Limits Section 10-8
The software limit function is enabled if an origin has been established (i.e.,
the No Origin Flag is OFF). The software limit function is disabled when the
origin has not been established.
When the Servo Drive power is turned ON, the PCU's present position is set
to 0, and the origin is not established. RELATIVE MOVEMENT can be exe-
cuted under these conditions, but the positioning range (present position
range possible for positioning) will be
−
2,147,483,648 to 2,147,483,647 (com-
mand units), and the present position will be refreshed by adding the travel
distance without an established origin.
If RELATIVE MOVEMENT is executed using a position command value that
exceeds the positioning range, a Position Designation Error (error code: 3060)
will occur when the command is executed.
When a command such as JOG continues to be executed, the present posi-
tion will be repeated between
−
2,147,483,648 and 2,147,483,647 (command
units). (Refer to 7-3 Coordinate System and Present Position .)
10-8-2 Procedure for Using Software Limits
The PCU uses the Servo Drive's software limit function. The Servo Parame-
ters for software limits must be set to enable the software limit function. After
setting the Servo Parameters, the software limit function is enabled by execut-
ing ORIGIN SEARCH and PRESENT POSITION PRESET, or detecting the
origin using the absolute encoder.
10-8-3 Software Limit Data Settings
Servo Parameter Area G-series Software Limit Parameters
Reverse software limit Forward software limit
Reverse rotation limit input signal Forward rotation limit input signal
Software level operating range
Electrical level operating range
Mechanical stopper Mechanical stopper
Mechanical level operating range
Type Parameter
No.
Parameter name Unit Setting range Parameter
size
Default
setting
--- Pn104 Software limit function --- 0 to 3 2 0
--- Pn201 Forward software limit Command unit
−
1,073,741,823
to
1,073,741,823
4 500000
--- Pn202 Reverse software limit Command unit
−
1,073,741,823
to
1,073,741,823
4
−
500000